What is "damn"? Is it common to use as a noun?
The full expression is "I don't give a damn," which is used to mean that someone doesn't care at all about something. Similar expressions include, "I don't give a shit," and "I don't give a fuck," however, these expressions are a bit crude and very informal in nature. It is commonly used as a noun in this context. Ex: I don't give a damn about his opinion. Ex: I don't give a damn what he thinks about me.